From owner-freebsd-current Mon Jun 9 22:35:15 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.5/8.8.5) id WAA10913 for current-outgoing; Mon, 9 Jun 1997 22:35:15 -0700 (PDT) Received: from mexico.brainstorm.eu.org (root@mexico.brainstorm.fr [193.56.58.253]) by hub.freebsd.org (8.8.5/8.8.5) with ESMTP id WAA10903 for ; Mon, 9 Jun 1997 22:35:09 -0700 (PDT) Received: from brasil.brainstorm.eu.org (brasil.brainstorm.fr [193.56.58.33]) by mexico.brainstorm.eu.org (8.8.4/8.8.4) with ESMTP id HAA04797 for ; Tue, 10 Jun 1997 07:35:04 +0200 Received: (from uucp@localhost) by brasil.brainstorm.eu.org (8.8.4/8.6.12) with UUCP id HAA08973 for current@FreeBSD.ORG; Tue, 10 Jun 1997 07:34:53 +0200 Received: (from roberto@localhost) by keltia.freenix.fr (8.8.5/keltia-uucp-2.9) id HAA07143; Tue, 10 Jun 1997 07:29:39 +0200 (CEST) Message-ID: <19970610072939.55693@keltia.freenix.fr> Date: Tue, 10 Jun 1997 07:29:39 +0200 From: Ollivier Robert To: current@FreeBSD.ORG Subject: Re: overclocking References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.67 In-Reply-To: ; from Burton Sampley on Mon, Jun 09, 1997 at 02:19:58PM -0700 X-Operating-System: FreeBSD 3.0-CURRENT ctm#3359 AMD-K6 MMX @ 208 MHz Sender: owner-current@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk According to Burton Sampley: > recently with the thread on the K6 making world in 1:21 hr. How do you do > that? I have a P133 on an ASUS P/I P55T2P4 MB w/ 80 meg RAM and 2 Which revision of the P55T2P4 ? You'll need 3.0 or later in order to use 75 & 83 MHz. 75 MHz is documented in the manual but 83 MHz is not. JP8 JP9 JP10 = 1-2 2-3 1-2 for 75 MHz = 1-2 1-2 2-3 for 83 MHz All [gory] details on . > lethargic EIDE drives (both WD's 1.6 & 3.1). I have currently set the MB > to the 2.0 & 66 MHz. I tried setting the jumpers for 2.5 and leaving the > other at 66 MHz, but even BIOS wouldn't come up (I was staring at a blank > screen). Do you have a proper fan/heat sink ? That is _very_ important for overclocking. Is your P133 recent or not ? Some recent versions of the pentium refuse to run at a different clock multiplier and the only thing you can do is to use a faster bus. > Does anybody know the correct jumper settings (for J8 - J11) to boost my > system up to 166 and 83 MHz? Is it worth the risk of send my CPU & MB > into meltdown? Like Satoshi said, buy a NCR SCSI card and some SCSI drive. That'll help a lot too. With proper cooling you can do wonder with overclocking. The dd test gave me 144 MB/s for a P166 (P133 running @ 2x 83 MHz). -- Ollivier ROBERT -=- FreeBSD: There are no limits -=- roberto@keltia.freenix.fr FreeBSD keltia.freenix.fr 3.0-CURRENT #18: Sun Jun 8 15:32:28 CEST 1997